Sie befinden Sich nicht im Netzwerk der Universität Paderborn. Der Zugriff auf elektronische Ressourcen ist gegebenenfalls nur via VPN oder Shibboleth (DFN-AAI) möglich. mehr Informationen...
WSEmail: An architecture and system for secure Internet messaging based on web services
Ist Teil von
Service oriented computing and applications, 2020-03, Vol.14 (1), p.5-17
Ort / Verlag
London: Springer London
Erscheinungsjahr
2020
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
Web services offer an opportunity to redesign a variety of older systems to exploit the advantages of a flexible, extensible, secure set of standards. In this work, we revisit WSEmail, a system proposed over 10 years ago to improve email by redesigning it as a family of web services. WSEmail offers an alternative vision of how instant messaging and email services could have evolved, offering security, extensibility, and openness in a distributed environment instead of the hardened walled gardens that today’s rich messaging systems have become. WSEmail’s architecture, especially its automatic plug-in download feature, allows for rich extensions without changing the base protocol or libraries. We demonstrate WSEmail’s flexibility using three business use cases: secure channel instant messaging, business workflows with routed forms, and on-demand attachments. Since increased flexibility often mitigates against security and performance, we designed WSEmail with security in mind and formally proved the security of one of its core protocols (on-demand attachments) using the TulaFale and ProVerif automated proof tools. We provide performance measurements for WSEmail functions in a prototype we implemented using .NET. Our experiments show a latency of about a quarter of a second per transaction under load.